SOLUTION: A parallelogram has one angle that measures 70°. What are the measures of the other three angles in the parallelogram?

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Question 1153537: A parallelogram has one angle that measures 70°. What are the measures of the other three angles in the parallelogram?
Answer by MathLover1(20850) About Me  (Show Source):
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parallelogram.png


if < +A=70°, then < +C=70°
we know that <+A%2BB=180°
< +70%2BB=180°
< +B=180-70°
< +B=110°
since < +B=D
=> < +D=110°